Global Patent Index - EP 1038566 A2

EP 1038566 A2 2000-09-27 - A particulate filter and a fabrication method thereof

Title (en)

A particulate filter and a fabrication method thereof

Title (de)

Partikelfilter und Verfahren zur Herstellung

Title (fr)

Filtre à particules et son procédé de fabrication

Publication

EP 1038566 A2 (EN)

Application

EP 00101850 A

Priority

JP 2409999 A

Abstract (en)

A filter element roll (10) of a particulate filter (1) consisting of a laminated body of filter units (13) wound around a cylindrical core (9) is provided. Each filter unit consists of a pair of filter media sheets (5) made of nonwoven metal fabric and a corrugated metal sheet (7) interposed between the pair of the filter media sheets. The edges (51) of the filter media sheets on one side of the filter unit are welded together so that an exhaust gas passage (3) having a closed end on one side of the filter unit is formed between the filter media sheets. After welding the edges (51), a plurality of the filter units (13) are placed one upon another to form a laminated body of the filter units in such a manner that the welded edges (51) of the filter units alternately face in opposite directions. The filter element roll (10) is formed by winding the laminated body of the filter units around the core (9). Since the edges (51) of the respective filter units can be welded before they are laminated and wound into the roll, the welding work of the edges of the filter units is greatly simplified. <IMAGE>

IPC 1-7 (main, further and additional classification)

B01D 46/24; B01D 39/20

IPC 8 full level (invention and additional information)

B01D 46/52 (2006.01); B01D 39/20 (2006.01); B01D 46/24 (2006.01); F01N 3/02 (2006.01); F01N 3/022 (2006.01)

CPC (invention and additional information)

B01D 46/0001 (2013.01); B01D 39/2041 (2013.01); B01D 46/2411 (2013.01); F01N 3/022 (2013.01); B01D 2275/105 (2013.01); F01N 2330/02 (2013.01); F01N 2330/12 (2013.01); Y02T 10/20 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1038566 A2 20000927; EP 1038566 A3 20010523; EP 1038566 B1 20040324; DE 60009187 D1 20040429; DE 60009187 T2 20050113; JP 2000218118 A 20000808; JP 3456433 B2 20031014

INPADOC legal status


2009-09-30 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-03-16 [26N] NO OPPOSITION FILED

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2004-10-29 [ET] FR: TRANSLATION FILED

2004-04-29 [REF] CORRESPONDS TO:

- Document: DE 60009187 P 20040429

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2001-05-23 [RIC1] CLASSIFICATION (CORRECTION)

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